/*
    This file is part of the substandard lisp implementation of Standard Lisp
    Copyright (C) 2011 Nicky Nickell

    substandard lisp is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

function std_cons(a, env) {
  var u = a[0];
  var v = a[1];

  return new lisp_pair(u, v);
}

/*---
name: cons
arity: 2
rest: false
ftype: FTYPE_EXPR

argument-types:
  - CLASS_ANY
  - CLASS_ANY

doc: |
  explaining what cons is / how it is used!

tests: |
  (cons 1 2) -> (1 . 2)
  (cons 1 (cons 2 NIL)) -> (1 2)
  (cons 1 (cons 2 (cons 3 (cons 4 NIL)))) -> (1 2 3 4)
  (cons (cons 1 2) (cons (cons 3 4) NIL)) -> ((1 . 2) (3 . 4))
  (cons "foo" "bar") -> ("foo" . "bar")
...*/
